Infrared ray gas burner with windproof function

ABSTRACT

An infrared ray gas burner with windproof function consisting of a nozzle ( 1 ), an ejector, a gas-air mixing chamber, an infrared combustion radiant panel and a burner mounting plate, wherein a wind-proof plate is mounted on the front end of the burner, a splitter plate is mounted in the gas-air mixing chamber of the burner, an air inlet is provided outside the periphery of the infrared combustion radiant panel, an air outlet is provided in the external cavity housing, the proportional relationship between the areas of the air inlet, the air outlet and the infrared combustion radiant panel is 1:(2.5-5):(14-20). The gas-air mixture overflowing from the infrared combustion radiant panel impacts against the outside wind to achieve a pressure balance, so as to obtain a stable burning and a good windproof effect.

FIELD OF THE INVENTION

The present invention relates generally to the field of an infrared ray gas burner, and particularly to an improvement on the combustion performance of a household or daily used infrared ray gas burner.

BACKGROUND OF THE INVENTION

With the improvement of people's living standards, home gas cooker, home and travel used gas barbecue oven and indoor or outdoor warmer have been in widespread use, and their combustion performances have been much improved. However, the wind resistance performances of gas barbecue oven, warmer and gas cooker on current market are still weak, and in order to pass the standard on wind resistance performance and meet the basic requirements of use, these products have generally adopted ion-detecting type or thermocouple type accidental flameout protection devices, or added a wind-proof plate to enhance wind resistance performance. These products or apparatus mainly have the following defects:

1. By means of installing an accidental flameout protection device, the gas source of the burner can be closed by an electromagnetic valve to achieve the purpose of safe use when an accidental flameout occurs in the gas burner, for example, the burner is extinguished by a strong wind, or the burner is extinguished by a soup. However, it does not really improve the wind resistance performance of a gas burner, for the gas burner still cannot be normally used in a strong wind environment, such as in a barbecue on the beach, therefore, it cannot meet the requirement of the user.

2. Whether adopting an ion-detecting type accidental flameout protection device or a thermocouple type accidental flameout protection device, the manufacturing cost will be greatly increased.

3. In the way of adding a wind-proof plate around the periphery of the burner to cut off the outside wind, though the wind resistance performance has been improved to some extent, the capacity of resisting outside wind is poor, it is hard to cut off a strong wind, and it fails to produce a wind resistance effect immediately when the direction of the outside wind changes a little.

Therefore, how to really improve the wind resistance performance of a gas burner when used outside, to help the gas burner to be used normally and reliably in an environment of a strong wind and make the product be manufactured with a low cost, becomes a tough technique problem in the field.

SUMMARY OF THE INVENTION

An object of the present invention is to improve the structure of a burner by means of adding an air inlet and an air outlet, resisting outside wind, directing the wind direction of the outside wind and making the combustion system achieve balance, so that the product can be used in various bad conditions, with not substantially increasing the cost of the gas burner but effectively improving the wind resistance performance.

According to an aspect of the present invention, an infrared ray gas burner with windproof function comprises a nozzle, an ejector, a gas-air mixing chamber, an infrared combustion radiant panel and a burner mounting plate. An external cavity housing is mounted on the outside of the combustion system and comprises the nozzle, the ejector and the gas-air mixing chamber. A splitter plate is mounted in the gas-air mixing chamber of the burner. A wind-proof plate is mounted on the burner external cavity mounting plate; the wind-proof plate is mounted on the front end of the infrared combustion radiant panel. An air inlet is provided outside the periphery of the infrared combustion radiant panel. An air outlet is provided in the external cavity housing. The proportional relationship between the area of the air inlet, the area of the air outlet and the area of the infrared combustion radiant panel is 1:(2.5-5):(14-20).

When an outside wind blows to the burner, the wind-proof plate can block the wind resisted back by the burner housing and prevent the wind from blowing to the infrared combustion radiant panel, part of the wind can enter from the air inlet to form a certain pressure in the external cavity housing; after the increasing of the pressure, part of the gas can enter from the ejector into the gas-air mixing chamber of the burner, and then, by means of flow splitting of the splitter plate, the part of the gas together with the gas-air mixture overflows from the infrared combustion radiant panel, impacts against the outside wind to achieve a pressure balance to some extent, and then, under the action of the wind-proof plate, a stable burning is obtained on the surface of the infrared combustion radiant panel and a good windproof effect is achieved.

When the outside wind is too large, the pressure in the external cavity housing will be relatively large, then, by providing an air outlet in the external cavity housing, the too large wind entering the external cavity housing can be overflowed, so that the wind pressure can be reduced, and therefore, the wind pressure in the external cavity housing and the burning on the surface of the infrared combustion radiant panel can be stabilized.

In the present invention, the infrared combustion radiant panel can preferably be a porous ceramic type radiant panel, a metal mesh type combustion radiant panel, a metal fiber type combustion radiant panel, a metal honeycomb body type combustion radiant panel, a foam metal type combustion radiant panel, a wire mesh type combustion radiant panel or a metal hole type combustion radiant panel.

The surface shape of the infrared combustion radiant panel can preferably be rounded, square, rectangular, trapezoidal, or a combination thereof.

Therefore, when used outdoors, the burner can direct the wind resisted back by the burner product through the wind-proof plate, so that the wind resisted back does not directly blow to the surface of the infrared combustion radiant panel, and by virtue of the pressure balance between the upper surface of the burner panel and the inner cavity of the burner, the fire face of the burner will not burn inwards and the fire will not be extinguished, so as to achieve good wind-resistant performance. The present invention can be used in outdoor used gas barbecue oven and gas warmer, which has significant usage results and excellent capability, and has strong wind resistance.

A gas turner with this kind of structure and method has good performance in wind resistance, high reliability, simple structure, and can overcome the following disadvantages of the existed gas burner used in outdoor: it is easy to be extinguished by wind, the combustion thereof is incomplete and the cost is high. The burner according to the present invention achieves purposes of safe, cost saving and combustion performance improving, and can meet the requirements of different products, different environments and conditions. The present invention also can be used for gas cooker products.

The present invention has the following advantages: good performance in wind resistance, windproof performance, simple structure, low manufacturing cost, high reliability and wide range of application.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention may be best understood by reference to the following description taken in conjunction with the accompanying drawings.

FIG. 1 schematically shows a lateral, partial section view of an embodiment of the present invention.

FIG. 2 schematically shows a forward, partial section view of an embodiment of the present invention.

FIG. 3 schematically shows a top view of a rectangular infrared combustion radiant panel (4) according to an embodiment of the present invention.

FIG. 4 schematically shows a top view of a square infrared combustion radiant panel (4) according to an embodiment of the present invention.

FIG. 5 schematically shows a top view of a rounded infrared combustion radiant panel (4) according to an embodiment of the present invention.

FIG. 6 schematically shows a top view of a trapezoidal infrared combustion radiant panel (4) according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLE 1 (FIGS. 1, 2 AND 3)

An infrared ray gas burner with windproof function comprises a nozzle (1), an ejector (2), a gas-air mixing chamber (3), an infrared combustion radiant panel (4) and a burner mounting plate (5), wherein an external cavity housing (6) is mounted on the outside of the combustion system and comprises the nozzle (1), the ejector (2) and the gas-air mixing chamber (3). A splitter plate (7) is mounted in the gas-air mixing chamber (3) of the burner. A wind-proof plate (8) is mounted on the burner external cavity mounting plate (5), the wind-proof plate (8) is mounted on the front end of the infrared combustion radiant panel (4). An air inlet (9) is provided outside the periphery of the infrared combustion radiant panel (4), and an air outlet (10) is provided in the external cavity housing (6). The proportional relationship between the area of the air inlet (9), the area of the air outlet (10), and the area of the infrared combustion radiant panel (4) is 1:3.5:16.5.

When an outside wind blows to the burner, the wind-proof plate (8) can block the wind resisted back by the burner housing and prevent the wind from blowing to the infrared combustion radiant panel (4). Part of the wind enters from the air inlet (9) to form a certain pressure in the external cavity housing (6), after the increasing of the pressure, part of the gas enters from the ejector (2) into the gas-air mixing chamber (3) of the burner, and then, by means of flow splitting of the splitter plate (7), the part of the gas together with the gas-air mixture can overflow from the infrared combustion radiant panel (4), impact against the outside wind to achieve a pressure balance to some extent, and then, under the action of the wind-proof plate (8), a stable burning is obtained on the surface of the infrared combustion radiant panel (4) and a good windproof effect is achieved.

When the outside wind is too large, the pressure in the external cavity housing (6) will be relatively large, then, by providing an air outlet (10) in the external cavity housing (6), the too large wind entering the external cavity housing (6) can be overflowed, so that the wind pressure can be reduced, and therefore, the wind pressure in the external cavity housing (6) and the burning on the surface of the infrared combustion radiant panel (4) can be stabilized.

In this embodiment of the present invention, the infrared combustion radiant panel (4) is a porous ceramic radiant panel, the surface shape of the infrared combustion radiant panel (4) is rectangle, and the wind-proof plate (8) is mounted on the front end of the infrared combustion radiant panel (4). In this case, the outdoor used gas burner can direct the wind resisted back by the burner products through the wind-proof plate (8), so that the wind resisted back does not directly blow to the surface of the infrared combustion radiant panel (4), and by virtue of the pressure balance between the upper surface of the burner panel and the inner cavity of the burner, the fire face of the burner does not burn inwards, and the fire cannot be extinguished, so as to achieve a good wind-resistant performance.

The present invention can be used in outdoor used gas barbecue oven and gas warmer, which has significant usage results and excellent capability, and has strong wind resistance. The gas burner has a good windproof performance. It has the following advantages: good performance in wind resistance, windproof performance, simple structure, low manufacturing cost, high reliability and wide range of application.

EXAMPLE 2 (FIGS. 1, 2 AND 4)

It is substantially the same as Example 1, differing only in that the surface shape of the infrared combustion radiant panel (4) is square.

EXAMPLE 3 (FIGS. 1, 2 AND 5)

It is substantially the same as Example 1, differing only in that the surface shape of the infrared combustion radiant panel (4) is rounded.

EXAMPLE 4 (FIGS. 1, 2 AND 6)

It is substantially the same as Example 1, differing only in that the surface shape of the infrared combustion radiant panel (4) is trapezoidal.

EXAMPLE 5 (FIGS. 1, 2 AND 3)

It is substantially the same as Example 1, differing only in that the proportional relationship between the areas of the air inlet (9), the air outlet (10) and the infrared combustion radiant panel (4) is 1:4:18.

EXAMPLE 6 (FIGS. 1, 2 AND 3)

It is substantially the same as Example 1, differing only in that the infrared combustion radiant panel (4) is a metal honeycomb body type combustion radiant panel. 

1. An infrared ray gas burner with windproof function comprising: a combustion system comprising a nozzle, an ejector, a gas-air mixing chamber, an infrared combustion radiant panel, and a burner mounting plate, wherein an external cavity housing is mounted on the outside of the combustion system: a splitter plate is mounted in the gas-air mixing chamber; a wind-proof plate mounted on the burner mounting plate and is positioned on a front end of the infrared combustion radiant panel; an air inlet is provided outside a periphery of the infrared combustion radiant panel; and an air outlet is provided in the external cavity housing.
 2. The burner of claim 1, wherein the infrared combustion radiant panel can be selected from the group consisting of a porous ceramic type radiant panel, a metal mesh type combustion radiant panel, a metal fiber type combustion radiant panel, a metal honeycomb body type combustion radiant panel, a foam metal type combustion radiant panel, a wire mesh type combustion radiant panel, and a metal hole type combustion radiant panel.
 3. The burner of claim 1, wherein the infrared combustion radiant panel has a surface shape selected from the shapes consisting of being rounded, square, rectangular, trapezoidal, or a combination thereof.
 4. The burner of claim 1 wherein a proportional relationship between an area of the air inlet, an area of the air outlet, and an area of the infrared combustion radiant panel is 1:(2.5-5):(14-20).
 5. The burner of claim 1 wherein the wind-proof plate is configured to block outside wind from blowing to the infrared combustion radiant panel.
 6. The burner of claim 1 wherein the air inlet is configured to permit passage of outside wind into the external cavity housing to form a pressure therein.
 7. The burner of claim 6 wherein the ejector is configured to direct gas into the gas-air mixing chamber, wherein the splitting plate is configured to direct combined gas and air to the infrared combustion radiant panel, and wherein overflow of the gas and air from the infrared combustion radiant panel impacts against outside wind to give a pressure balance that provides stable burning on the surface of the infrared combustion radiant panel.
 8. The burner of claim 7 wherein the air outlet is configured to permit the passage of outside air entering into the external cavity housing to overflow and pass outwardly from the housing to give a pressure balance that provides stable burning on the surface of the infrared combustion radiant panel.
 9. An infrared ray gas burner with windproof function comprising: a combustion system comprising a nozzle, an ejector, a gas-air mixing chamber, an infrared combustion radiant panel, and a burner mounting plate, wherein an external cavity housing is mounted on the outside of the combustion system; a splitter plate mounted in the gas-air mixing chamber; a wind-proof plate mounted on the burner mounting plate and positioned adjacent a front end of the infrared combustion radiant panel; an air inlet positioned outside a periphery of the infrared combustion radiant panel to permit passage of outside air into the combustion system; and an air outlet provided in the external cavity housing to permit the passage of air from the combustion system and outside of the burner; wherein the wind proof plate is configured to prevent outside wind from blowing to the infrared combustion radiant panel, and wherein the splitter plate is positioned and configured to create a pressure balance between a combined gas and air mixture combination directed to the infrared combustion radiant panel and outside air to provide a stable burning condition on the surface of the infrared combustion radiant panel.
 10. The burner of claim 9, wherein the infrared combustion radiant panel is selected from the group consisting of a porous ceramic type radiant panel, a metal mesh type combustion radiant panel, a metal fiber type combustion radiant panel, a metal honeycomb body type combustion radiant panel, a foam metal type combustion radiant panel, a wire mesh type combustion radiant panel, and a metal hole type combustion radiant panel.
 11. The burner of claim 9 wherein the infrared combustion radiant panel has a surface shape selected from the shapes consisting of being rounded, square, rectangular, trapezoidal, or a combination thereof.
 12. The burner of claim 9 wherein a proportional relationship between an area of the air inlet, an area of the air outlet, and an area of the infrared combustion radiant panel is 1:(2.5-5):(14-20).
 13. A method of providing a windproof function to an infrared ray gas burner comprising the steps of: directing a gas into an air-gas mixing chamber through a nozzle and an ejector, the mixing chamber comprising a splitter plate disposed therein, the burner including an infrared combustion radiant panel positioned adjacent the mixing chamber, and a wind-proof plate positioned adjacent an end of the infrared combustion radiant panel; allowing outside air to enter the air-gas mixing chamber though an air inlet positioned outside a periphery of the infrared combustion radiant panel, wherein the entering air creates a pressure in the mixing chamber and combines with the gas to form an air and gas mixture; directing the air and gas mixture to the infrared combustion radiant panel; and allowing a portion of the air and gas mixture to overflow from the infrared combustion radiant panel and impact with the outside air to achieve a pressure balance through the presence of the wind-proof plate, wherein the pressure balance provides stable burning on a surface of the infrared combustion radiant panel. 